English
Related papers

Related papers: From Pixels to Planes: Minimum Ground Sample Dista…

200 papers

Rooftop 3D reconstruction using UAV-based photogrammetry offers a promising solution for infrastructure assessment, but existing methods often require high percentages of image overlap and extended flight times to ensure model accuracy when…

Robotics · Computer Science 2025-11-07 Nick Chodura , Melissa Greeff , Joshua Woods

Flight height is a fundamental parameter for correcting the gamma signal produced by terrestrial radionuclides measured during airborne surveys. The frontiers of radiometric measurements with UAV require light and accurate altimeters flying…

Autonomous aerial robots operating in GPS-denied or communication-degraded environments frequently lose access to camera metadata and telemetry, leaving onboard perception systems unable to recover the absolute metric scale of the scene. As…

Robotics · Computer Science 2026-03-05 Yifei Chen , Xupeng Chen , Feng Wang , Niangang Jiao , Jiayin Liu

Localizing ground devices (GDs) is an important requirement for a wide variety of applications, such as infrastructure monitoring, precision agriculture, search and rescue operations, to name a few. To this end, unmanned aerial vehicles…

Signal Processing · Electrical Eng. & Systems 2020-12-17 Francesco Betti Sorbelli , Cristina M. Pinotti , Simone Silvestri , Sajal K. Das

We report on the retrieval of directional sea surface roughness, in terms of its full directional mean square slope (including direction and isotropy), from Global Navigation Satellite System Reflections (GNSS-R) Delay-Doppler-Map (DDM)…

Atmospheric and Oceanic Physics · Physics 2015-06-26 O. Germain , G. Ruffini , F. Soulat , M. Caparrini , B. Chapron , P. Silvestrin

We report results from the Eddy Experiment, where a synchronous GPS receiver pair was flown on an aircraft to collect sampled L1 signals and their reflections from the sea surface to investigate the altimetric accuracy of GNSS-R. During the…

Atmospheric and Oceanic Physics · Physics 2007-05-23 G. Ruffini , F. Soulat , M. Caparrini , O. Germain , M. Martin-Neira

This paper introduces the Minimal Biorobotic Stealth Distance (MBSD), a novel quantitative metric to evaluate the bionic resemblance of biorobotic aircraft. Current technological limitations prevent dragonfly-inspired aircrafts from…

Robotics · Computer Science 2024-10-22 Zhang Minghao , Song Bifeng , Yang Xiaojun , Wang Liang , Lang Xinyua

The Sentinel-2 satellite mission delivers multi-spectral imagery with 13 spectral bands, acquired at three different spatial resolutions. The aim of this research is to super-resolve the lower-resolution (20 m and 60 m Ground Sampling…

Computer Vision and Pattern Recognition · Computer Science 2018-10-23 Charis Lanaras , José Bioucas-Dias , Silvano Galliani , Emmanuel Baltsavias , Konrad Schindler

We investigate methods for determining if a planar surface contains geometric deviations (e.g., protrusions, objects, divots, or cliffs) using only an instantaneous measurement from a miniature optical time-of-flight sensor. The key to our…

Robotics · Computer Science 2024-08-08 Carter Sifferman , William Sun , Mohit Gupta , Michael Gleicher

Detection of small-sized targets is of paramount importance in many aerial vision-based applications. The commonly deployed low cost unmanned aerial vehicles (UAVs) for aerial scene analysis are highly resource constrained in nature. In…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Murari Mandal , Manal Shah , Prashant Meena , Santosh Kumar Vipparthi

Most of the current Global 21-cm experiments include ground screens that help moderate effects from the Earth. In this paper, we report on a possible systematic artifact within the ground plane that may produce broad absorption features in…

Instrumentation and Methods for Astrophysics · Physics 2019-04-10 Richard F. Bradley , Keith Tauscher , David Rapetti , Jack O. Burns

The availability of real-world data is a key element for novel developments in the fields of automotive and traffic research. Aerial imagery has the major advantage of recording multiple objects simultaneously and overcomes limitations such…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Friedrich Kruber , Eduardo Sánchez Morales , Samarjit Chakraborty , Michael Botsch

Airplane detection from satellite imagery is a challenging task due to the complex backgrounds in the images and differences in data acquisition conditions caused by the sensor geometry and atmospheric effects. Deep learning methods provide…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Tolga Bakirman , Elif Sertel

Knowing where livestock are located enables optimized management and mustering. However, Australian farms are large meaning that many of Australia's livestock are unmonitored which impacts farm profit, animal welfare and the environment.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-21 Jasper Brown , Yongliang Qiao , Cameron Clark , Sabrina Lomax , Khalid Rafique , Salah Sukkarieh

Most contributions on Few-Shot Object Detection (FSOD) evaluate their methods on natural images only, yet the transferability of the announced performance is not guaranteed for applications on other kinds of images. We demonstrate this with…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Pierre Le Jeune

This paper provides the EVOPS dataset for plane segmentation from 3D data, both from RGBD images and LiDAR point clouds. We have designed two annotation methodologies (RGBD and LiDAR) running on well-known and widely-used datasets for SLAM…

Computer Vision and Pattern Recognition · Computer Science 2022-08-25 Anastasiia Kornilova , Dmitrii Iarosh , Denis Kukushkin , Nikolai Goncharov , Pavel Mokeev , Arthur Saliou , Gonzalo Ferrer

During the Eddy Experiment, two synchronous GPS receivers were flown at 1 km altitude to collect L1 signals and their reflections from the sea surface for assessment of altimetric precision and accuracy. Wind speed (U10) was around 10 m/s,…

Atmospheric and Oceanic Physics · Physics 2015-06-26 G. Ruffini , F. Soulat , M. Caparrini , O. Germain , M. Martin-Neira

Purpose: This paper presents a new dataset of Aerial Imagery from Robotics simulator (abbr. AIR). AIR dataset aims to provide a starting point for localization system development and to become a typical benchmark for accuracy comparison of…

Robotics · Computer Science 2019-10-30 Rokas Jurevičius , Virginijus Marcinkevičius

Recently developed automatic dense image matching algorithms are now being implemented for DSM/DTM production, with their pixel-level surface generation capability offering the prospect of partially alleviating the need for manual and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Rongjun Qin , Armin Gruen , Cive Fraser

Using SDSS DR15 to its full extent, we derived fundamental plane distances to over 317 000 early-type galaxies up to a redshift of 0.4. In addition to providing the largest sample of fundamental plane distances ever calculated, as well as a…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-29 Christoph Saulder , Ian Steer , Owain Snaith , Changbom Park
‹ Prev 1 2 3 10 Next ›